Roller skate



April 12, 1938.

C. S. SIFFERT ROLLER SKATE Filed April 2'7, 1936 Patented Apr. 12, 1938 Christian sine-t, Deer-field, n1. 7 Application April 27, 1936, Serial No. 10,524

1 Claim.

This invention relates to a roller skate. It is an object of this invention to provide an improved roller skate which is relatively simplev in vide a new and improved body or supporting frame for a roller skate and which is made in one-piece so as to be economical to manufacture and possessed of relatively great strength, and at the same time has 'a neat, attractive, and streamlined" appearance. r

A further object of the invention is to provide a new and improved roller skate including a supporting frame or body with which relatively wide, flat rollers may be used for skating upon the ordinary surfaces such, for example, as sidewalks and the like, and upon which relatively narrow rollers may be mounted for use upon ice and or analogous slippery surfaces, the said rollers being interchangeable. T An additional object of the present invention is to provides. roller skate having a novel brake member at the rear end of the same, whereby the user may, by tilting the skate upwardly at the front end of the same, exert a drag upon the surface over which the skate is traveling.

Another object of the invention is to provide a roller skate embodying novel rollers for use on ice and each of which rollers includes a body having an annular blade attached thereto, and each of said blades having a relatively straight peripheral surface with sharp corners which are adapted to engage the ice so as to prevent lateral slipping when the skate is used upon ice.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed. 7

The invention will be best understood by reference to the accompanying drawing showing the preferred form of construction, and in which:

Fig. 1 is a side-elevational view of a preferred form of the, new skate showing the same structcd for use upon ice;

line 2-2 of Fig. 1;

Fig. 3 is a top plan view of the new skate shown inFigs. 1 and 2; and

Fig. 4 is a vertical sectional view showing a modified form of the new skate as especially Fig. 2 is a transverse vertical sectional view, on

adapted for use upon ice or analogous smooth or slippery surfaces.

A preferred form of the new skate is shown in Figs. 1 to 3, inclusive, is therein generally indicated at to, and comprises a one-piece body or supporting frame II. This supporting frame or body ll includes a top or horizontal portion l2 and side walls or flanges l3 and II which are integral with, and depend from, the top I2, the said top I2 having laterally extending toe flanges I5 and heel flanges l6.

The skate l shown in the drawing is of the three wheel tandem type and includes three hubs i1, i8 and I9 which are extended between, and are journaled in, the side walls or depending flanges l3 and ll of the supporting frame ll. Rotatably mounted upon these hubs I1, l8 and I9 are the front, middle and rear rollers 20, 2| and 22, respectively, and each of these rollers includes ball-bearings 23, these bearings 23 being retained in a cage ll (Fig. 2) which is formed as a part of the corresponding roller. The bearings 23 also travel in an annular groove 39 which is formed in the corresponding hub (Fig. 2) thereby holding the corresponding roller 2| against lateral movement.

that any suitable shoe may be attached to the body ll of the skate and be supported by and upon the toe and heel flange I and I6, respectively, thereof.

It is also to be noted that when the new skate III is in use the skater may readily stop his forward motion by tilting the skate upwardly at the front end of the same so that the brake member 25 will exert a drag upon the surface over which the skate is traveling, the member 25 thusacting as a brake.

It is likewise to be noted when. the new skate I0 is in use tife skater may employ the middle roller 2| as a pivot upon which ,to turn, although the skate lll may also be made of only two rollers, if desired, in place of three, as shown.

A modified form of the new skate is shown in I except for the construction of the rollers, one of I or cage 3| which is formed as a part of the body ll of the roller 26 (Fig. 4). The bearings 30 also travel in an annular groove 40 which is formed in the hub 21, thereby preventinglateral movement of the roller. The body 34 of the roller 26 has a pair of peripheral flanges 35 which extend radially outwardly therefrom, and attached to,'

and mounted between, these flanges 36 is a relatively narrow circular blade 36; it being noted that this modified form of the skate Shown in Fig. 4 is especially adapted for use upon ice and other analogous smooth and slippery surfaces and when so used the blades are very effective to prevent slipping, each of the blades 36 having a relatively straight peripheral surface 31 and sharp edges 38 which are adapted to grip the surface upon which the skate is used and to prevent lateral slipping when the skate is used upon ice; it being noted that the edges 38 of the blade 36 are thus distinguished from the curved v edges 42 of the roller 2| (Fig.2).

While I have illustrated and described the preferred form of construction for carrying my invention'into effect, this is capable of variation and modification, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth,'but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having thus describedv my invention, what I claim as new and desire to protect by Letters Patent is: a

A roller skate having an integral one-piece supporting frame or body of sheet metal comprising a horizontal top portion and longitudinally spaced and laterally extending heel and toe plates cut out of said body, and spaced side walls of sub-.

stantial height integral therewith and bent downwardly from the said top portion heel and toe plates, and having an inverted U-shaped formation in cross-section throughout the major portion of the length of the skate, the lower portions of the side walls being substantially straight and continuous and providing roller-axle bearings, and a plurality of rollers located in a single track in the space between said side walls and having axles mounted in said bearings.

CHRISTIAN SIFFERT. 

